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SRLMJ23

macrumors 68020
Original poster
Jul 11, 2008
2,334
1,435
Central New York
Hey guys I am using Windows and have the proper iOS 5 Beta 5 ipsw file, however, I keep getting an iTunes error #20...can someone help me out here?
 
Error 20 is mismatch in cryptokeys or in other words failed jailbreak. You need a clean install of the iPhone OS. That is usually the case. In rare instances it can be linked to failure in USB communications.
 
I have a fresh install of iOS 4.3.5 on there and it still says it. I have never jailbroken this phone before. Any other tips?
 
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